A North Side man is charged with first-degree murder after prosecutors say he helped a co-defendant chase down and fatally shoot another man in the chest over Memorial Day weekend in the Humboldt Park neighborhood.

The Texas trooper who arrested Sandra Bland after a confrontation that began with a traffic stop was once cautioned about "unprofessional conduct" in a 2014 incident while he was still a probationary trooper, according to documents released Friday.

Chicago aviation authorities have failed to produce convincing evidence that keeping open all the diagonal runways at O'Hare International Airport would increase the risk of planes colliding, residents protesting the city's new noise-mitigation proposals said Friday.